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1. The front and rear positions of the inner hook presser can be
adjusted by means of the setscrew .
[Standard adjusting value]
Fasten the needle entry section by means of the setscrew so
that it is located closer to the shoulder section toward the front side
from the center of the embossed part in the inner hook presser .
o If the embossed part of the inner
hook presser has any flaw, this
can be a cause of thread break-
age or uneven sewing.
In such a case, the damaged part
shall be replaced with a new one.
o If the inner hook presser is
positioned inadequately, an extra
tension is exerted when the thread
comes out of the embossed part.
This can be a cause of shrinkage
errors.
Adjustment Procedure Results of Improper Adjustment
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